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参数资料
| 型号： | LTC3634EUFD#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 5.5 A DUAL SWITCHING CONTROLLER, 4600 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封装： | 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-28 |
| 文件页数： | 24/28页 |
| 文件大小： | 359K |
| 代理商： | LTC3634EUFD#TRPBF |
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LTC3634
5
3634f
Typical perForMance characTerisTics
Internal MOSFET RDS(ON)
vs Junction Temperature
Shutdown Current vs VIN
SW Leakage vs Temperature
VTT Power Loss vs Load Current,
Sourcing and Sinking
Efficiency vs Input Voltage
Reference Voltage
vs Temperature
VTT Power Loss vs Load Current
Oscillator Frequency
vs Temperature
Oscillator Internal Set Frequency
vs Temperature
TA = 25°C, VIN = 12V, fSW = 1MHz, L = 1.5μH unless
otherwise noted.
–50
FREQUENCY
VARIATION
(%)
–8
–6
–4
–2
0
2
4
6
8
25
125
3634 G08
–10
10
0
–25
50
75
100
TEMPERATURE (°C)
–50
FREQUENCY
(MHz)
1.6
1.8
2.0
2.2
2.4
25
125
3634 G09
1.4
2.6
0
–25
50
75
100
TEMPERATURE (°C)
RT = INTVCC
–50
R
DS(ON)
(m)
20
40
60
80
100
120
140
25
125
3634 G10
0
160
0
–25
50
75
100
TEMPERATURE (°C)
TOP SWITCH
BOTTOM SWITCH
4
I Q
(A)
2
4
6
10
8
16
3634 G11
0
12
20
16
18
14
8
6
10
12
14
VIN (V)
–50
LEAKAGE
CURRENT
(nA)
1000
2000
3000
5000
0
125
100
3634 G12
0
6000
7000
4000
–25
25
50
75
TEMPERATURE (°C)
MAIN SWITCH
SYNCHRONOUS SWITCH
–3
POWER
LOSS
(W)
3
3634 G04
0
0.2
0.4
0.6
0.8
1.2
1.0
1
0
2
–2
–1
OUTPUT CURRENT (A)
VIN = 12V
VIN = 8V
VIN = 4V
VTT = 0.9V
L = 0.82H
4
EFFICIENCY
(%)
16
3634 G05
60
65
70
75
80
90
95
85
12
10
14
6
8
INPUT VOLTAGE (V)
IOUT = 10mA
IOUT = 100mA
IOUT = 1A
IOUT = 3A
–50
V FB
(V)
0.597
0.599
50
125
3634 G07
0.595
0.601
0.605
0.603
25
–25
0
75
100
TEMPERATURE (°C)
–3
POWER
LOSS
(W)
3
3634 G06
0
0.2
0.4
0.6
0.8
1.2
1.0
1
0
2
–2
–1
OUTPUT CURRENT (A)
VIN = 15V
VIN = 12V
VIN = 8V
VIN = 4V
VTT = 0.75V
L = 0.82H
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